Our salivary glands, which are located on the inside of each cheek, at the bottom of the mouth and under the jaw at the front of the mouth, churn out about 2 to 4 pints (1 to 2 liters) of spit every day. The mere mention or aroma...

Diets that are low in fiber may cause irreversible changes to populations of gut bacteria, and those changes may be passed on over generations, new research suggests. In experiments, mice that were fed a low-fiber diet lost certain species of the bacteria in their gut...

Antioxidants — chemicals found natural foods and man-made pills that may prevent certain types of cell damage — have been touted for their supposed anti-cancer properties, but some research suggests these substances may not lower cancer risk and, in some cases, may even increase it....